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PC-SPAN version 4 is an easy-to-use Windows program that allows you to load SPAN risk parameter files for exchanges and clearing organizations of interest, define portfolios, calculate margins, and view or print results. Version 4 was first made available in 1999. The latest build of version 4 is numbered as 593.

PC-SPAN version 4:

  • Supports the XML-based SPAN file format and the Paris-expanded-unpacked format in addition to the original unpacked and expanded-unpacked formats.
  • Supports the XML-based position file format as well as the original unpacked and expanded-unpacked position file formats.
  • Supports the SPAN files produced by over 35 world exchanges currently leveraging SPAN margin methodology. 

Minimum System Requirements

PC-SPAN version 4 requires:

  • A PC running a version starting with Windows 7 or higher (Windows server build 2008 R2 or higher).
  • Microsoft .NET Framework 4.5 or higher.
  • The following C++ Visual Libraries:
    • Visual C++ 2008 SP1 Runtime Libraries (x86)
    • Visual C++ 2008 SP1 Runtime Libraries (x64) 
    • Visual C++ 2010 SP1 Runtime Libraries (x86) 
    • Visual C++ 2010 SP1 Runtime Libraries (x64)
    • Visual C++ 2013 Runtime Libraries (x86) 
    • Visual C++ 2013 Runtime Libraries (x64)
  • Approx. 15 megabytes of disk space to install.
  • Approx. 50 megabytes of free space to be able to install and use the program.
  • Minimum of 64 megabytes of RAM. Adding more RAM will greatly improve performance.